CN209815687U - Silencing device for oxygenerator - Google Patents

Abstract

The utility model discloses a silencing device for oxygenerator, which comprises a housin, intake pipe and outlet duct, be equipped with a plurality of division boards in the casing, the division board falls into a plurality of cushion chambers with the casing, two adjacent cushion chambers are linked together through the opening that sets up on the division board, the intake pipe is installed on the casing and is linked together with the first cushion chamber that the air current flows through, the outlet duct is installed on the casing and is linked together with the last cushion chamber that the air current flows through, every cushion chamber still is equipped with the baffle that makes the air current that gets into the cushion chamber produce the diffusion. The utility model discloses a set up a plurality of cushion chambers and cushion the air current, set up the baffle that makes the air current produce the dispersion simultaneously in the cushion chamber, can effectively reduce the air current noise, and then reduce the noise of oxygenerator.

Description

A noise reduction device for an oxygen generator

technical field

The utility model relates to the technical field of oxygen generators, in particular to a noise reduction device for an oxygen generator.

Background technique

With the continuous improvement and improvement of living standards, people pay more and more attention to health, and oxygen inhalation has gradually become an important means of rehabilitation for family patients. Household oxygen concentrators are widely used because of their ease of use and lightness of movement. Household oxygen generators usually use molecular sieve physical adsorption and desorption technology to generate oxygen, that is, after the air is pressurized by the compressor, solid impurities such as oil and dust are removed through the air pretreatment device, and the treated compressed air enters the adsorption device equipped with molecular sieves. The tower, nitrogen, carbon dioxide, etc. in the air are adsorbed, and finally output high-purity oxygen. When the adsorption tower reaches a certain degree of saturation, the adsorption tower enters the stage of nitrogen exhaust and flushing. However, because the compressor in the household molecular sieve oxygen generator adopts a piston-type oil-free lubricated air compressor, when the air inlet of the compressor is inhaled, due to the telescopic movement of the piston, the air vibrates and the noise spreads outward.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art and provide a noise reduction device for an oxygen generator.

In order to achieve the above object, the utility model proposes the following technical proposal: a noise reduction device for an oxygen generator, comprising a housing, an air inlet pipe and an air outlet pipe, and M partition plates arranged at intervals are arranged inside the housing, M The partition plate divides the housing into M+1 buffer chambers, each partition board is provided with an opening for airflow to pass through, and two adjacent buffer chambers are connected through the opening, the air intake pipe is installed on the housing and It communicates with the first buffer chamber through which the airflow flows, and the outlet pipe is installed on the housing and communicates with the last buffer chamber through which the airflow flows. Each buffer chamber is also equipped with a The air flow produces a diffused baffle, and a gap for the air flow to pass is formed between the baffle and the inner wall of the buffer chamber, wherein M is an integer greater than or equal to 1.

Preferably, the M partition plates are arranged at equal intervals.

Preferably, the M partition plates are arranged parallel to each other.

Preferably, the opening is provided in the middle of each partition.

Preferably, the baffle in the buffer chamber is arranged parallel to the partition.

Preferably, each buffer cavity is also provided with sound-absorbing cotton.

The beneficial effects of the utility model are:

(1) The airflow is buffered by setting multiple buffer chambers, and at the same time, a baffle is installed in the buffer chamber to disperse the airflow, which can effectively reduce the vibration frequency and amplitude of the gas, reduce the noise of the airflow, and then reduce the noise of the oxygen generator.

(2) It has the advantages of simple structure and low manufacturing cost.

Description of drawings

Fig. 1 is a schematic sectional view of the utility model.

Reference signs: 10, housing, 11, air intake pipe, 12, air outlet pipe, 13, partition plate, 131, opening, 14, buffer cavity, 15, baffle plate, 16, gap.

Detailed ways

The technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

As shown in Figure 1, a noise reduction device for an oxygen generator disclosed by the utility model includes a housing 10, an air inlet pipe 11 and an air outlet pipe 12, wherein the housing 10 is provided with M partitions arranged at intervals. Plate 13, M partition plates 13 divide the housing 10 into M+1 buffer chambers 14 for buffering the airflow, each partition plate 13 is provided with an opening 131, and two adjacent buffer chambers 14 pass through the opening 131 connected. Further, the air inlet pipe 11 is installed on the housing 10 and communicates with the first buffer chamber through which the air flow flows, and the air outlet pipe 12 is also installed on the housing 10 and communicates with the last buffer chamber through which the air flow flows. In connection with each other, during implementation, the airflow entering from the air inlet pipe 11 is buffered by M+1 buffer chambers 14, and finally discharged through the air outlet pipe 12. The airflow is buffered by setting the buffer cavity 14, the vibration frequency and amplitude of the airflow are reduced, the noise of the airflow is reduced, and the noise of the oxygen generator is further reduced.

In this embodiment, it is best to set the M partition plates 13 at equal intervals, of course, the distance between two partition plates 13 can also be set according to actual needs.

Further, it is best to set the opening 131 in the middle of the partition plate 13, of course, the position of the opening 131 can also be set according to actual needs.

As shown in the figure, in order to better reduce the airflow noise, each buffer chamber 14 is also provided with a baffle 15 for dispersing the airflow entering the buffer chamber 14, and the baffle 15 in the buffer chamber 14 and the buffer chamber 14 A gap 16 is formed between the inner walls of the buffer chamber for the airflow to pass through. During implementation, the airflow entering the buffer chamber 14 is blocked by the baffle plate 15 and further diffuses. The diffused gas passes through the gap 16 and enters the next buffer chamber 14 through the opening 131 Or discharge from outlet pipe 12. By setting the baffle plate 15, the vibration frequency and amplitude of the airflow can be effectively reduced, thereby reducing the airflow noise.

In this embodiment, it is optimal that the baffle plate 15 in the buffer cavity 14 is arranged parallel to the partition plate 13 .

Further, each buffer cavity 14 is also provided with sound-absorbing cotton (not shown in the figure), which on the one hand plays a role in reducing noise, and on the other hand also plays a role in filtering impurities in the airflow.

The technical content and technical features of the utility model have been disclosed above, but those skilled in the art may still make various replacements and modifications based on the teaching and disclosure of the utility model without departing from the spirit of the utility model. Therefore, the protection of the utility model The scope should not be limited to the content disclosed in the embodiment, but should include various replacements and modifications that do not depart from the utility model, and are covered by the claims of this patent application.

Claims (6)

1. A silencer for an oxygen generator, characterized in that it comprises a housing, an air inlet pipe and an air outlet pipe, the housing is provided with M dividing plates arranged at intervals, and the M dividing plates divide the housing into There are M+1 buffer cavities, each partition plate is provided with an opening for airflow to pass through, two adjacent buffer cavities are connected through the opening, the air inlet pipe is installed on the shell and connected to the first airflow flow through The air outlet pipe is installed on the housing and communicates with the last buffer chamber through which the airflow flows. Each buffer chamber is also provided with a baffle that diffuses the airflow entering the buffer chamber. And a gap is formed between the baffle plate and the inner wall of the buffer chamber for the passage of air, wherein, M is an integer greater than or equal to 1. 2. The device according to claim 1, characterized in that, M dividing plates are arranged at equal intervals. 3. The device according to claim 1 or 2, characterized in that, the M partition plates are arranged parallel to each other. 4. The device according to claim 1 or 2, characterized in that the opening is provided in the middle of each partition. 5. The device according to claim 1, characterized in that, the baffle in the buffer chamber is arranged parallel to the partition plate. 6. The device according to claim 1, characterized in that, each buffer cavity is further provided with sound-absorbing cotton.